After an encounter with the Master, an airline stewardess named Tegan Jovanka becomes an unwitting stowaway aboard the TARDIS as it travels to the planet Logopolis. There, the Doctor discovers that the Master's interference with the Logopolitans' advanced mathematics has unleashed a wave of entropy which threatens to consume the entire universe.
The Doctor
Adric
Nyssa
Tegan Jovanka
The Master
Detective Inspector
The Monitor
The Doctor
The Master (archive footage)
The Captain (archive footage)
Davros (archive footage)
The Black Guardian (archive footage)
Sarah Jane Smith (archive footage)
Harry Sullivan (archive footage)
Brigadier Lethbridge-Stewart (archive footage)
Leela (archive footage)
Romana (I) (archive footage)
March 21, 1981
The Doctor
Adric
Nyssa
Tegan Jovanka
The Master
Detective Inspector
The Monitor
The Doctor
The Master (archive footage)
The Captain (archive footage)
Davros (archive footage)
The Black Guardian (archive footage)
Sarah Jane Smith (archive footage)
Harry Sullivan (archive footage)
Brigadier Lethbridge-Stewart (archive footage)
Leela (archive footage)
Romana (I) (archive footage)
